the following is the pre-heat treatment of wood drying equipment, hoping to help readers.
the preheat treatment time depends on the wood species, thickness and water content in the furnace. taking 50 mm thick material as an example, the initial spraying time is usually 12-15 hours. in order to obtain a reasonable temperature gradient, the boiled materials also need to be treated for 6 to 8 hours. for qinggang oak and southern oak, there are many parenchyma cells, ray parenchyma cells, mahogany, patty, gamba bean and other dense materials. they are sprayed for 24 hours to soften the wood thoroughly, dredge the cell cavity and partly dissolve the leaching fillings in the cell cavity, so as to prepare for the subsequent drying process.
initial spraying temperature should not be too low, otherwise the steam flow into the furnace is too small to make the relative humidity in the furnace meet the standard requirements, and the effect of pre-heat treatment is not good. generally, the initial treatment temperature is 95-100 degrees.
whether or not the fan starts continuously during the initial treatment depends on the sealing of the furnace body. if the furnace body is well sealed, it can start continuously after 3-4 hours of initial spraying; if the furnace body is not well sealed and the furnace body is continuously started for a long time, the temperature in the furnace will rise and the humidity will decrease, which will lead to the drying defects during the initial treatment period. in this case. generally, it starts every 2-3 hours. the vapor is evenly dispersed on the surface of the material. better treatment effect can be obtained.
our factory specializes in the production of wood dryers, wood drying equipment, wood drying equipment, adhere to the quality of survival, to promote the development of credibility purposes, the enterprise has passed the iso 9001:2008 international quality management system certification. warmly welcome friends from all walks of life to visit and guide, negotiate business and seek common development.
the preheat treatment time depends on the wood species, thickness and water content in the furnace. taking 50 mm thick material as an example, the initial spraying time is usually 12-15 hours. in order to obtain a reasonable temperature gradient, the boiled materials also need to be treated for 6 to 8 hours. for qinggang oak and southern oak, there are many parenchyma cells, ray parenchyma cells, mahogany, patty, gamba bean and other dense materials. they are sprayed for 24 hours to soften the wood thoroughly, dredge the cell cavity and partly dissolve the leaching fillings in the cell cavity, so as to prepare for the subsequent drying process.
initial spraying temperature should not be too low, otherwise the steam flow into the furnace is too small to make the relative humidity in the furnace meet the standard requirements, and the effect of pre-heat treatment is not good. generally, the initial treatment temperature is 95-100 degrees.
whether or not the fan starts continuously during the initial treatment depends on the sealing of the furnace body. if the furnace body is well sealed, it can start continuously after 3-4 hours of initial spraying; if the furnace body is not well sealed and the furnace body is continuously started for a long time, the temperature in the furnace will rise and the humidity will decrease, which will lead to the drying defects during the initial treatment period. in this case. generally, it starts every 2-3 hours. the vapor is evenly dispersed on the surface of the material. better treatment effect can be obtained.
our factory specializes in the production of wood dryers, wood drying equipment, wood drying equipment, adhere to the quality of survival, to promote the development of credibility purposes, the enterprise has passed the iso 9001:2008 international quality management system certification. warmly welcome friends from all walks of life to visit and guide, negotiate business and seek common development.
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